Weather in January
January, the same as
December, in
Sullivan's Island,
South Carolina, is another mild winter month, with an average temperature ranging between max 57°F (13.9°C) and min 45.5°F (7.5°C). January is the coldest month, with the temperature often reaching an average high of 57°F (13.9°C) and an average low of 45.5°F (7.5°C).
Weather in January » Weather in February
The last month of the winter,
February, is another refreshing month in
Sullivan's Island,
South Carolina, with an average temperature fluctuating between 48.7°F (9.3°C) and 59.9°F (15.5°C). February commences with an average high-temperature of a still moderate 59.9°F (15.5°C), showing little deviation from
January's 57°F (13.9°C).
Weather in February »Weather in March
The first month of the spring,
March, is an enjoyable month in
Sullivan's Island,
South Carolina, with an average temperature varying between 64.4°F (18°C) and 53.6°F (12°C). March experiences an average high-temperature of an enjoyable 64.4°F (18°C), barely different from
February's 59.9°F (15.5°C).
Weather in March »
Weather in April
April in
Sullivan's Island,
South Carolina, is an agreeable spring month, with temperature in the range of an average high of 71.8°F (22.1°C) and an average low of 61.3°F (16.3°C). Sullivan's Island in April experiences a slight uptick in the average high-temperature, adjusting from
March's enjoyable 64.4°F (18°C) to an agreeable 71.8°F (22.1°C).
Weather in April » Weather in May
The last month of the spring,
May, is a warm month in
Sullivan's Island,
South Carolina, with temperature in the range of an average high of 78.1°F (25.6°C) and an average low of 68.7°F (20.4°C). Sullivan's Island's weather shows a minor temperature rise with the arrival of May, moving from a pleasant 71.8°F (22.1°C) in
April to a warm 78.1°F (25.6°C).
Weather in May »Weather in June
June, the first month of the summer in
Sullivan's Island, is also a moderately hot month, with an average temperature varying between 75.4°F (24.1°C) and 84.6°F (29.2°C). Sullivan's Island observes a slight ascent in average high-temperatures during June, adjusting from 78.1°F (25.6°C) in
May to a still moderately hot 84.6°F (29.2°C).
Weather in June »
Weather in July
July is a tropical summer month in
Sullivan's Island,
South Carolina, with temperature in the range of an average low of 78.3°F (25.7°C) and an average high of 86.5°F (30.3°C). In Sullivan's Island, the month of July registers the highest temperatures, averaging 86.5°F (30.3°C) at the peak and 78.3°F (25.7°C) at the lowest. July's average heat index is appraised at a very hot 98.6°F (37°C).
Weather in July » Weather in August
The last month of the summer,
August, is also a moderately hot month in
Sullivan's Island,
South Carolina, with an average temperature ranging between min 78.1°F (25.6°C) and max 85.8°F (29.9°C). The average high-temperature is a moderately hot 85.8°F (29.9°C) in August, hardly different from the 86.5°F (30.3°C) recorded in
July.
Weather in August »Weather in September
The first month of the autumn,
September, is also a moderately hot month in
Sullivan's Island,
South Carolina, with an average temperature ranging between min 74.3°F (23.5°C) and max 82.9°F (28.3°C). As
August turns into September, the average high-temperatures rest at a still warm 82.9°F (28.3°C), showing a minor variation from the prior month.
Weather in September »
Weather in October
October, like
September, in
Sullivan's Island,
South Carolina, is another warm autumn month, with an average temperature fluctuating between 64.9°F (18.3°C) and 75.2°F (24°C). Start of October brings a slight shift in the average high-temperature, dipping a bit from September's 82.9°F (28.3°C) to a still moderately hot 75.2°F (24°C).
Weather in October » Weather in November
November, the last month of the autumn in
Sullivan's Island, is another comfortable month, with temperature in the range of an average low of 54.9°F (12.7°C) and an average high of 65.7°F (18.7°C). With November's onset, the average high-temperature recedes from
October's warm 75.2°F (24°C) to an enjoyable 65.7°F (18.7°C).
Weather in November » Weather in December
The first month of the winter,
December, is also an enjoyable month in
Sullivan's Island,
South Carolina, with an average temperature varying between 50.4°F (10.2°C) and 61°F (16.1°C). The advent of December reveals an average high-temperature of a still enjoyable 61°F (16.1°C), showing minimal difference from the prior month.
Weather in December »